A driver with a vehicle issue pulled off the highway and into a Danbury gas station moments before the engine caught fire yesterday.  Danbury Firefighters responded to Lake Avenue Extension on a report that a single occupant parked away from the gas pumps, but the passenger compartment was ablaze.  The fire was quickly extinguished and there were no injuries reported.  No other property damage was reported.  The Danbury Fire Marshal’s office is investigating the cause.